﻿#region 程序集引用
using System;
using System.Security.Cryptography;
using System.Text.RegularExpressions;
using System.Web;
#endregion

#region 版权注释
/*===========================================================================
// Copyright (C) 2017 Zhang.cn，并保留所有 
// 作者：吴岸标 QQ:405403610
// 创建日期：2017-09-03
// 功能描述： URL操作
===========================================================================*/
#endregion

namespace Zhang
{
    namespace Utils
    {
        /// <summary>
        /// URL操作
        /// </summary>
        public static class URL
        {
            /// <summary>
            /// 是否是移动浏览器
            /// </summary>
            /// <returns></returns>
            public static bool IsMobileBrowser
            {
                get
                {
                    //GETS THE CURRENT USER CONTEXT
                    HttpContext context = HttpContext.Current;
                    //FIRST TRY BUILT IN ASP.NT CHECK
                    if (context.Request.Browser.IsMobileDevice)
                    {
                        return true;
                    }
                    //THEN TRY CHECKING FOR THE HTTP_X_WAP_PROFILE HEADER
                    if (context.Request.ServerVariables["HTTP_X_WAP_PROFILE"] != null)
                    {
                        return true;
                    }
                    //THEN TRY CHECKING THAT HTTP_ACCEPT EXISTS AND CONTAINS WAP
                    if (context.Request.ServerVariables["HTTP_ACCEPT"] != null &&
                        context.Request.ServerVariables["HTTP_ACCEPT"].ToLower().Contains("wap"))
                    {
                        return true;
                    }
                    //AND FINALLY CHECK THE HTTP_USER_AGENT 
                    //HEADER VARIABLE FOR ANY ONE OF THE FOLLOWING

                    if (context.Request.ServerVariables["HTTP_USER_AGENT"] != null)
                    {
                        //根据HTTP_USER_AGENT，用正则表达式来判断是否是手机在访问
                        string u = context.Request.ServerVariables["HTTP_USER_AGENT"];
                        System.Text.RegularExpressions.Regex b = new System.Text.RegularExpressions.Regex(@"android|avantgo|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\\/|plucker|pocket|psp|symbian|treo|up\\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino", System.Text.RegularExpressions.RegexOptions.IgnoreCase | System.Text.RegularExpressions.RegexOptions.Multiline);
                        System.Text.RegularExpressions.Regex v = new System.Text.RegularExpressions.Regex(@"1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\\-(n|u)|c55\\/|capi|ccwa|cdm\\-|cell|chtm|cldc|cmd\\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\\-s|devi|dica|dmob|do(c|p)o|ds(12|\\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\\-|_)|g1 u|g560|gene|gf\\-5|g\\-mo|go(\\.w|od)|gr(ad|un)|haie|hcit|hd\\-(m|p|t)|hei\\-|hi(pt|ta)|hp( i|ip)|hs\\-c|ht(c(\\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\\-(20|go|ma)|i230|iac( |\\-|\\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\\/)|klon|kpt |kwc\\-|kyo(c|k)|le(no|xi)|lg( g|\\/(k|l|u)|50|54|e\\-|e\\/|\\-[a-w])|libw|lynx|m1\\-w|m3ga|m50\\/|ma(te|ui|xo)|mc(01|21|ca)|m\\-cr|me(di|rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\\-2|po(ck|rt|se)|prox|psio|pt\\-g|qa\\-a|qc(07|12|21|32|60|\\-[2-7]|i\\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\\-|oo|p\\-)|sdk\\/|se(c(\\-|0|1)|47|mc|nd|ri)|sgh\\-|shar|sie(\\-|m)|sk\\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\\-|v\\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\\-|tdg\\-|tel(i|m)|tim\\-|t\\-mo|to(pl|sh)|ts(70|m\\-|m3|m5)|tx\\-9|up(\\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|xda(\\-|2|g)|yas\\-|your|zeto|zte\\-", System.Text.RegularExpressions.RegexOptions.IgnoreCase | System.Text.RegularExpressions.RegexOptions.Multiline);
                        if ((b.IsMatch(u) || v.IsMatch(u.Substring(0, 4))))
                        {
                            return true;
                        }
                        //Create a list of all mobile types
                        string[] mobiles =
            {

            "midp", "j2me", "avant", "docomo",
            "novarra", "palmos", "palmsource",
            "240x320", "opwv", "chtml",
            "pda", "windows ce", "mmp/",
            "blackberry", "mib/", "symbian",
            "wireless", "nokia", "hand", "mobi",
            "phone", "cdm", "up.b", "audio",
            "SIE-", "SEC-", "samsung", "HTC",
            "mot-", "mitsu", "sagem", "sony"
            , "alcatel", "lg", "eric", "vx",
            "NEC", "philips", "mmm", "xx",
            "panasonic", "sharp", "wap", "sch",
            "rover", "pocket", "benq", "java",
            "pt", "pg", "vox", "amoi",
            "bird", "compal", "kg", "voda",
            "sany", "kdd", "dbt", "sendo",
            "sgh", "gradi", "jb", "dddi",
            "moto", "iphone"
        };

                        //Loop through each item in the list created above 
                        //and check if the header contains that text
                        foreach (string s in mobiles)
                        {
                            if (context.Request.ServerVariables["HTTP_USER_AGENT"].ToLower().Contains(s.ToLower()))
                            {
                                return true;
                            }
                        }
                    }
                    return false;
                }
            }

            /// <summary>
            /// 获取URL的根域名,像 /param/? 这种之类的返回  /
            /// </summary>
            /// <param name="url">要解析的URL</param>
            /// <returns></returns>
            public static string ParseDomain(string url)
            {
                string rootDomain;

                if (url.Substring(0, 1) == "/")
                {
                    rootDomain = "/";
                }
                else
                {
                    try
                    {
                        Uri uri = new Uri(url);
                        rootDomain = "http://" + uri.Authority;
                    }
                    catch
                    {
                        rootDomain = "/";
                    }
                }

                return rootDomain;
            }

            /// <summary>
            /// 格式化URL
            /// </summary>
            /// <param name="url">url链接</param>
            /// <returns></returns>
            public static string FormatUrl(string url)
            {
                url = url.Replace("http://", "####");
                url = url.Replace("//", "/");
                url = url.Replace("####", "http://");
                return url;
            }

            /// <summary>
            /// 获取URL上一级目录
            /// </summary>
            /// <param name="url"></param>
            /// <returns></returns>
            public static string ParentDir(string url)
            {
                string pURL = string.Empty;
                string[] arrSegment = url.Split(new string[] { "/" }, StringSplitOptions.RemoveEmptyEntries);

                for (int i = 0; i < arrSegment.Length - 1; i++)
                {
                    pURL += arrSegment[i] + "/";
                }

                if (url.StartsWith("http") == false)
                {
                    pURL = "/" + pURL;
                }

                return pURL;
            }

            /// <summary>
            /// 获取请求网站的根目录的URL
            /// </summary>
            /// <param name="request"></param>
            /// <returns></returns>
            public static string GetRootURL(HttpRequestBase request)
            {
                string rootUrl = String.Empty;
                if (request != null)
                {
                    string urlAuthority = request.Url.GetLeftPart(UriPartial.Authority);
                    if (request.ApplicationPath == null || request.ApplicationPath == "/") //位于根目录
                    {
                        rootUrl = urlAuthority;
                    }
                    else
                    {
                        rootUrl = urlAuthority + request.ApplicationPath;
                    }
                }

                return rootUrl;
            }
        }
    }
}
